Milli-meter and Optical-Infrared Astronomical Observations by Using High-Level Overseas Telescopes.

利用海外高水平望远镜进行毫米波和光学红外天文观测。

• 批准号: 04041110
• 负责人: KOZAI Yoshihide
• 金额: $ 1.92万
• 依托单位: National Astronomical Observatory
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04041110/
• 关键词: Starburst Galaxies; Active Galactic Nuclei; Interstellar Medium; Cluster Of Galaxies; Molecular Hydrogen Absorption; Seyfert Galaxies; H I 21cm; Redshift survey

Nine persons ( Y. Taniguchi, H. Suto, T. Hasegawa, K. Wakamatsu, M. Tanaka, K. Iwasawa, F. Sato, Y. Sofue, and K. Ogura ) were delegated for astronomical observations with various wavelengths in the optical, infrared and radio regions.The objectives are 1) interstellar medium ( Suto, Tanaka, and Ojura ) 2) galaxies ( Taniguchi, Iwasawa, and Sfue ), and 3) clusters of falaxies ( Hasegawa, Wkamatsu ).The countries or areas where their activities were devoted are Mauna Ken (JCMT and UKIRT), Greenbank, USA, and Bonn, Germany, in the northern hemisphere and Cerro Tololo, La Silla in Chile and South Africa.1)Suto made infrared imaging for 15 star-forming regions at J, H, and K bands. A remarkable complex of nebulosities was detected around infrared source IRAS 11072-7727. Ogura carried out an observation of Herbig-Haro objects HH135/136, which had been discovered by himself, with CO lines at 1.3 and 1.4 mm at SEST (Swedish-ESO) telescope. A high-velocity molecular outflow was detected in the … More 12CO(J=2-1) emission line at 1.3mm, while a dense molecular core encompassing thetwo HH objects was revealed in the 13CO(J=2-1).Sato made an extensive survey of a Cepheus-Cassiopeia complex region with neutral hydrogen at a wavelength of 21cm with NRAO Greenbank 43m radio telescope, USA. In the survey, he delineated the neutral hydrogen cloud enveloping the complex, and a shell structure with a diameter of 10ﾟ degrees locating at a galactic longitude 110ﾟ and a galactic latitude 3ﾟ .2)Taniguchi found that temperature of circumnuclear clouds in the star-burst galaxies is significantly higher than that of normal molecular clouds in our galaxies.Tanaka detected a broad width of H2 molecular line for a Seyfert/cD galaxy, NGC1275 with a spectral resolution of 30 km/s.Iwasawa obtained spectra in the optical regions of 17 galaxies with CTIO 1.5m telescope. He found a spectrum exhibiting the typical Seyfert 2 in IRAS18325-5926, which was designated to Seyfert 1 from the X-ray observations by Ginga. He also detected a bump at Fell lambda 4570 in Tololo 0109-38, and a blue compact dwarf galaxy associated with Mkn603.Sofue tried to detect the CO absorption line toward three quasars or related objects with the redshifts of 2 to 3, using the Bonn 100 m radio telescope in Germany, but failed to detect it with sufficient signal-to-noise ratios.3)Hasegawa made a measurement of recession velocities for 50 galaxies in the cluster of galaxies in Ophiuchi constellation using RPCS low-resolution spectrometer at 1.9m telescope in South Africa. He discovered new clusters of galaxies. Combining the clusters of galaxies previously discovered by himself and his colleagues, he concluded that these clusters of galaxies form a supercluster of galaxies, and there lies a huge void between the supercluster and us.Wakamatsu carried out an extensive spectroscopic survey for the above region with the Cassegrain spectrometer at CTIO 1.5m telescope, Chile. The above super-cluster extending toward Hercules cluster of galaxies shows 'Wall' structure with an extent of 100 Mpc.Thus, a various field of researches were carried out in this program, covering interstellar medium, activities in the galaxies, and structures of the clusters of galaxies. A number of papers with high levels were published or are in preparation. Without the access to the telescopes located at the excellent sites in the world, these success could not be attained. Most of the planned schedules have been achieved in this research program. Less

九个人(谷口Y.T.T.Suto，T.Hasegawa，K.Wakamatsu，M.Tanaka，K.Iwa awa，F.Sato，Y.Sofue，K.Ogura)被委托进行光学、红外和射电区域不同波长的天文观测。目标是1)星际介质(Suto，Tanaka和Ojua)2)星系(Taniguchi，Iwa awa和Sfue)，3)法拉克星团(Hasegawa，Wkamatsu)。他们活动的国家或地区是北半球的茂纳肯(JCMT和UKIRT)、美国格林班克和德国波恩和Cerro Tolo，Cerro Tolo在智利和南非的La Silla 1)Suto对J、H和K波段的15个恒星形成区域进行了红外成像。在红外源IRAS 11072-7727周围探测到了一个显著的星云复合体。Ogura对自己发现的HerBig-Haro天体HH135/136进行了观测，在瑞典-欧洲南方天文台(SEST)望远镜上，CO线分别位于1.3和1.4 mm。在…中检测到了高速的分子外流在1.3 mm处有较多的12CO(J=2-1)发射线，而在13CO(J=2-1)中发现了围绕这两个HH天体的致密分子核。佐藤利用美国NRAO Greenbank 43m射电望远镜在21 cm的波长下对仙王座-仙后座复合区进行了广泛的调查。在调查中，他描绘了包裹着该复合体的中性氢云，以及一个直径为10ﾟ度的壳体结构，位于星系经度110ﾟ，星系纬度3ﾟ。2)谷口发现，恒星爆发星系中的环核云温度显著高于我们星系中正常分子云的温度。田中探测到一个光谱分辨率为30公里/秒的塞费特/CD星系NGC1275的宽H2分子线。岩川用CTIO1.5米望远镜获得了17个星系的光学区域的光谱。他发现了一个光谱，显示了IRAS18325-5926中典型的Seyfert 2，根据Ginga的X射线观测，该光谱被指定为Seyfert 1。他还在Tololo 0109-38的Fall Lambda 4570探测到了一个凸起，并探测到了一个与Mnu603有关的蓝色致密矮星系。Sofue试图利用德国的波恩100米射电望远镜探测到红移为2到3的三个类星体或相关天体的CO吸收线，但未能以足够的信噪比探测到它。3)长谷川利用南非1.9米望远镜的RPC低分辨率光谱仪测量了蛇夫座星系团中50个星系的退缩速度。他发现了新的星系团。结合他和他的同事们之前发现的星系团，他得出结论，这些星系团形成了一个超星系团，在这个超星系团和我们之间存在着一个巨大的空洞。Wakamatsu利用智利CTIO 1.5米望远镜的卡塞格伦光谱仪对上述区域进行了广泛的光谱调查。上述向大力神星系团延伸的超星系团呈现出100Mpc的“墙”结构。因此，本计划开展了多个领域的研究，包括星际介质、星系中的活动以及星系团的结构。一些高水平的论文已经发表或正在编写中。如果不能接触到世界上最好的地点的望远镜，这些成功是不可能实现的。在这项研究计划中，大部分计划的时间表都已经实现。较少

项目成果

T. Hasegawa: "Discovery of large scale structure of Ophiuchus supercluster" The Astrophysical Journal.

T. Hasekawa：“蛇夫座超星系团大规模结构的发现”《天体物理学杂志》。

Inoue: "Velocity-Resolved H2 Emission Line from the Nucleus of NGC1275" ApJ. Letters.

Inoue：“NGC1275 核的速度分辨 H2 发射线”ApJ。

Y.Sofue: "Ram Pressure Accretion of Intergaractic Clouds by Galaxies" Astron.& Astrophys.

Y.Sofue：“星系间云的冲压压力吸积”Astron。

Y.Sofue: "CO-Line Tuly fisher Relation" PASJ. 44. L231-234 (1992)

Y.Sofue：“CO-Line Tuly Fisher Relation”PASJ。

T.Hasegawa: "Luminosity Dependence of Galaxy Clusterig in Extinction Corrected CfA Data" Monthly Notices of Royal Astronomical Society.

T.Hasekawa：“消光校正的 CfA 数据中星系簇的光度依赖性”皇家天文学会月刊。